WATCH: All the Stars Come out for a Festive 'Carpool Karaoke' Christmas

By: Kelly Meyers

Of course, 2017 was a massive year for James Corden and the Carpool Karaoke brand. It went from a regular skit on his late night TV show to a series that is carried by Apple Music. In fact, every episode of Carpool Karaoke seems to become a huge viral hit.